# Answer on Algebra Question for Keshav kumar

Question #38683

Let Sn denote the sum of n terms of an AP whose first term is a .If the common difference d is given by d= sn- k sn-1+sn-2 then k= ?

(a) 1 (b) 2 (c) 3 (d) None

(a) 1 (b) 2 (c) 3 (d) None

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